third_party/WebKit/LayoutTests/fast/events/selectstart-by-drag.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <p>This test ensures selectstart is fired exactly once when selecting text by a mouse drag.
   5 </p><span style='font-size: 50px; padding: 10px;' contenteditable>hello
   6 </span><pre><script>
   7
   8 var span = document.getElementsByTagName('span')[0];
   9 span.focus();
  10
  11 var selectStartCount = 0;
  12 span.addEventListener('selectstart', function (event) { selectStartCount++; });
  13
  14 function expect(title, expectedCount, expectedType) {
  15     document.write(title + ': ');
  16     var actualSelectionType = window.getSelection().isCollapsed ? 'caret' : 'range';
  17
  18     if (selectStartCount != expectedCount)
  19         document.writeln('FAIL - expected ' + expectedCount + ' events but got ' + selectStartCount + ' events');
  20     else if (actualSelectionType != expectedType)
  21         document.writeln('FAIL - expected selection to be ' + expectedType + ' but was ' + actualSelectionType);
  22     else
  23         document.writeln('PASS');
  24 }
  25
  26 if (window.testRunner && !window.eventSender)
  27     document.write('This test requires eventSender');
  28 else if (window.testRunner) {
  29     testRunner.dumpAsText();
  30
  31     var y = span.offsetTop + span.offsetHeight / 2;
  32
  33     function leapForwardAndMove(x) {
  34         eventSender.leapForward(200);
  35         eventSender.mouseMoveTo(span.offsetLeft + x, y);
  36     }
  37
  38     expect('Initial state', 0, 'caret');
  39     eventSender.dragMode = false;
  40     eventSender.mouseMoveTo(span.offsetLeft + 5, y);
  41     eventSender.mouseDown();
  42     expect('Mouse down', 1, 'caret');
  43
  44     leapForwardAndMove(5);
  45     expect('Moving slightly to the right', 1, 'caret');
  46
  47     leapForwardAndMove(-5);
  48     expect('Moving slightly to the left', 1, 'caret');
  49
  50     leapForwardAndMove(span.offsetWidth / 2);
  51     expect('Moving to the right', 1, 'range');
  52
  53     leapForwardAndMove(span.offsetWidth);
  54     expect('Moving further to the right', 1, 'range');
  55
  56     leapForwardAndMove(0);
  57     expect('Moving back to the left', 1, 'caret');
  58
  59     leapForwardAndMove(span.offsetWidth);
  60     expect('Moving to the right again', 1, 'range');
  61
  62     eventSender.mouseUp();
  63     window.getSelection().collapse(span, 0);
  64     eventSender.leapForward(1000);
  65
  66     eventSender.mouseMoveTo(span.offsetLeft + span.offsetWidth - 5, y);
  67     eventSender.mouseDown();
  68     expect('Mouse down on the right', 2, 'caret');
  69
  70     leapForwardAndMove(span.offsetWidth / 2);
  71     expect('Moving to the left', 2, 'range');
  72
  73     eventSender.mouseUp();
  74
  75     document.writeln('Done.');
  76     span.parentNode.removeChild(span);
  77 }
  78
  79 </script></pre>
  80 </body>
  81 </html>